Should I Quit While I'm Ahead?

Trying to get my custom 6.5x55 zeroed in. It was made on a 1909 Argentine M98 action w/ a 24" fairly heavy barrel. I just got it back from the GS last week. Started out w/ 100 grain Hornadys and it was all over the paper. Went to 120 grain Speers and a little better, but not much. I was down to my last 5 rounds. All of a sudden and I can't explain why but the thing just settled in and started to shoot. The next 3 shots: in the same hole. Now I'm so excited I can't hold the gun steady. 4th shot, a flier. 5th shot, a worse flier. But hey, I don't care. I know now that it is capable of very good accuracy. I have a feeling that 140 grains will shoot even better.
cottontop

Yeah, I love it. The handloads are mine. I'm going to try some 140 grain handloads w/ some various powders. I think you nailed it with barrel break in. The military trigger is not great. It's not bad, but not great. My being excited over the 3 shot one hole group probably didn't help w/shot #4 and 5. It will be a great rifle and it is settleing in just fine. I put an old Redfield Widefield 2-7 variable on it and it seems to be a great combination. I will post a picture of the gun in the near future.
cottontop

But guys, I am trying to tell you that there is no problem. The gun shoots fine and those first three shots all in the same hole. What I was trying to say and it somehow got lost in the writing is that those next two shots were off because of me being too excited to hold the rifle steady enough. I was trying a little humor by saying that maybe I should have quit with those first three shots. I do appreciate everybody's advice and concern though.
cottontop